Dr. Paul Zabalegui received his M.Sc. degree in Telecommunications Engineering in 2018 and PhD in 2022 from TECNUN (School of Engineering of San Sebastián), Spain. He joined the CEIT-IK4 Research Centre in San Sebastián in 2019, and he is currently a Researcher within the Transport and Sustainable Mobility group. His research activity lies in the field of multisensor positioning and navigation integrity enhancing statistical methods, together with software development. He is now actively participating in H2020 European-funded projects in railway signaling and positioning topics. He is the author or co-author of six articles in journals and international conferences.